Graphics stuttering issue related to netspeed (video inside)

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Graphics stuttering issue related to netspeed (video inside)

Post by Dizzy »

I've been suffering from stuttering graphics when playing online in UT ever since I upgraded my PC and can't find a solution.

It looks and feels a lot like what happens if you play with an uncapped high frame rate (like 300FPS+) but this issue is happening even though I'm using a frame rate limit and/or VSync.

It's almost certainly related to netspeed or UT's netcode because it's fine on some servers (like UK Insta which I think is a Windows server) but not on others (like my own which is Linux).

It's also 100% not a problem if I play offline.

My normal setup:

• Windows 7 64-bit
• GTX 1080
• 165Hz monitor
• VSync disabled and GSync enabled
• Running D3D10 renderer with a 180 FPS cap

If I uncap the FPS I reach 800+ FPS and the game goes insane.

I have tried:

• Different renderers: D3D10, D3D9, D3D, OpenGL
• Different frame rate caps (100, 150, 180, 200 etc.)
• Different netspeeds (lower netspeeds like 5000 do reduce the stuttering but make me unable to connect to Nexgen/ACE/etc.)
• Disabling/Enabling VSync/GSync/ULMB etc.

I've even tried changing my Linux server settings but this didn't help, and other people don't seem to experience the problem.



Any ideas?
Last edited by Dizzy on Fri Feb 26, 2021 9:15 pm, edited 1 time in total.
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Re: Graphics stuttering issue related to netspeed (video ins

Post by Chamberly »

Not using any core patch?

If the server is using ACE, maybe try ace performance toggle command?
Last edited by Chamberly on Sun May 14, 2017 10:29 am, edited 1 time in total.
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Re: Graphics stuttering issue related to netspeed (video ins

Post by Dr.Flay »

Have a look at this guide. Possibly it can help you track down the cause easier